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Defense, Government Contracting, Cybersecurity, IT Services, Aerospace, Healthcare Technology

Real-Time Software Engineer

Arrington, Virginia, United StatesOnsiteFull Time$87,100–$157,450 /yrPosted 1 month agoVisa sponsorship available

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Role summary

Leidos is seeking a Real-Time Software Engineer for its Electronic Warfare Division in Arlington, VA. This role involves designing, developing, and integrating real-time C/C++ software for multi-core systems running Linux or RTOS like VxWorks. The engineer will work on advanced signal processing algorithms, interface with hardware, and collaborate in small, multi-disciplinary teams within agile environments. A Bachelor's degree in a related field, 4+ years of software development experience with C++, Python, or MATLAB, and a Secret security clearance are required. Experience with object-oriented design, hardware interfaces, build tools, and version control is also necessary. Preferred qualifications include a Master's degree, higher security clearance, and experience with embedded systems debugging.

Description
Today,
Electronic Warfare (EW) is a growing enterprise - protecting the warfighter and our national security against ever-adapting threats
. Our division currently has an exciting opportunity for a
Real-Time Software Engineer
to perform design, development, and hardware/software integration in Arlington, VA for the Electronic Warfare Division
Our division primarily focuses on research & development and advanced prototyping, transforming state of the art signal processing algorithms into real-time software systems.
Projects involve small multi-disciplinary teams of engineers working together in spiral or agile development environments to meet aggressive customer schedules aimed at near-term field demonstrations.
Join a team of experts in implementing high-performance signal processing on general purpose processors, such as ARM.
The Successful Candidate Will Be Responsible For

  • Contributing to design and development of advanced systems as a part of multi-disciplinary teams. These teams are made up of other software team members and subject matter experts from the areas of systems engineering, hardware, firmware, machine learning, RF front end design, and signal processing.
  • Designing, implementing, and testing real-time C/C++ software for multi-core systems running Linux or a real-time operating systems, such as VxWorks
  • Build software products that utilize third party mathematics and communication libraries
  • Interface communication standards / protocols such as TCP/IP, UDP, and DDS
  • Read and understand signal processing algorithms written in MATLAB
  • Work with Linux operating system as well as experience with real-time operating systems
  • Designing, implementing, and testing software to configure and control RF hardware devices
  • Integrating software into third-party software frameworks and architectures, such as Redhawk
  • Documenting the developed systems
  • Support system field testing and collection events, usually about a week in duration once or twice a year

At
Leidos
, we offer
competitive benefits
http://www.leidos.com/careers/pay-benefits, including 4 or more weeks Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.
Join us and make a difference in Electronic Warfare Technology!
The Successful Candidate Will Have The Following Basic Education/experience

  • Bachelor’s Degree in Computer Engineering, Electrical Engineering, or Computer Science, or related discipline
  • 4+ years of software development experience, including strong experience in programming in Python, MATLAB, or C++
  • Strong understanding of object-oriented design
  • Basic understanding of hardware-software interaction and basic computer architecture
  • Experience with hardware interfaces (e.g. PCIe, UART, Ethernet)
  • Experience with build tools (e.g. GCC, CMake, or Make)
  • Experience using version control (e.g. git, Subversion) and continuous integration software tools (e.g. Jenkins)
  • Experience with software testing tools and methodology
  • Experience in creating and maintaining technical documentation for developed software
  • Ability to communicate and share ideas, concepts, and designs with a team of engineers
  • Demonstrated ability and motivation to continually learn new technical skills and concepts
  • Understanding of unit test frameworks and test-driven development practices
  • Must have active Secret level security clearance with the ability to obtain a TS/SCI.

Bonus Education/experience

  • Master’s Degree in Computer Engineering, Electrical Engineering, Computer Science, or equivalent
  • Active security clearance higher than the Secret level
  • Ability to debug embedded systems using tools like oscilloscopes and logic analyzers
  • Experience maintaining, tracking, and updating ticket/status using Gitlab or similar interface
  • Experience using common scripting languages (e.g. bash)

NKE
Electronic Warfare
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting
March 25, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range
Pay Range $87,100.00 - $157,450.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
About Leidos
Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.
Pay And Benefits
Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.
Securing Your Data
Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Sample Leidos interview questions

  • 1

    What are the key considerations when designing a highly available and consistent service registry?

    system designmedium
  • 2

    Buildings with an Ocean View Find all buildings that have an ocean view. Input: heights = [1,2,3,4] Output: [3] Explanation: Since the ocean is to the right, only the rightmost tallest building (index 3) is not blocked by any others.

    codingmedium
  • 3

    Merge K Sorted Linked Lists Merge K sorted linked lists. Input: lists = [[2,2,3],[1,5]] Output: [1,2,2,3,5] Explanation: Extracts the smallest current node iteratively using a priority queue to build a single merged and sorted linked list.

    codingmedium
  • 4

    Optimal Meeting Point Calculate the optimal meeting point for multiple people on a 2D grid. Input: grid = [[1,0],[0,1]] Output: 2 Explanation: The optimal meeting point is either (0,1) or (1,0), requiring exactly 1 step from each person resulting in a total distance of 2.

    codingmedium
  • 5

    Maximize the minimum distance between aggressive cows in stalls. Input: stalls = [0,4,3,7,10,9], cows = 3 Output: 4 Explanation: Placing the cows at positions 0, 4, and 10 yields a maximum possible minimum distance of 4 between any two cows.

    codingmedium

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